Resource allocation method in sidelink communication

Abstract

Disclosed is a resource allocation method in sidelink communication. An operation method of a terminal includes the steps of: receiving a first message, including mobility conditions to be used for selecting a resource allocation mode for sidelink communication, from a base station; selecting the resource allocation mode to be applied to the terminal, the selection being made on the basis of the results of a comparison between the mobility of the terminal and the mobility conditions; determining a resource pool on the basis of the selected resource allocation mode; and performing the sidelink communication by using the determined resource pool. Accordingly, the performance of a communication system can be enhanced.

What is claimed is: 
     
       1. An operation method of a terminal in a communication system, the operation method comprising:
 receiving, from a base station, a message including a speed threshold used to select a resource allocation scheme for sidelink communication; 
 selecting the resource allocation scheme based on a result of comparing a speed of the terminal and the speed threshold; 
 determining a sidelink resource based on the selected resource allocation scheme; and 
 performing the sidelink communication using the determined sidelink resource, 
 wherein the resource allocation scheme is classified into a type 1-resource allocation scheme and a type2-resource allocation scheme, and 
 wherein a first sidelink resource determined based on the type1-resource allocation scheme is different from a second sidelink resource determined based on the type2-resource allocation scheme, and 
 wherein, when the speed of the terminal is above the speed threshold, the selected resource allocation scheme is the type1-resource allocation scheme, and when the speed of the terminal is below the speed threshold, the selected resource allocation scheme is the type2-resource allocation scheme. 
 
     
     
       2. The operation method according to  claim 1 , further comprising transmitting, to the base station, an additional message including information indicating the selected resource allocation scheme. 
     
     
       3. An operation method of a base station in a communication system, the operation method comprising:
 transmitting, to a terminal, first information of a speed threshold used to select a resource allocation scheme for sidelink communication; and 
 transmitting, to the terminal, second information of the resource allocation scheme according to the speed threshold, 
 wherein the resource allocation scheme is classified into a type 1-resource allocation scheme and a type2-resource allocation scheme, 
 wherein a first sidelink resource determined based on the type1-resource allocation scheme is different from a second sidelink resource determined based on the type2-resource allocation scheme, and 
 wherein, when the speed of the terminal is above the speed threshold, the type1-resource allocation scheme is selected by the terminal, and when the speed of the terminal is below the speed threshold, the type2-resource allocation scheme is selected by the terminal. 
 
     
     
       4. The operation method according to  claim 3 , further comprising receiving, from the terminal, a message including information indicating the type 1-resource allocation scheme or the type2-resource allocation scheme selected by the terminal based on a result of comparing the speed of the terminal and the speed threshold. 
     
     
       5. An operation method of a terminal in a communication system, the operation method comprising:
 transmitting, to a base station, a first message including a speed of the terminal; 
 receiving, from the base station, a second message including information indicating a resource allocation scheme selected based on a result of comparing the speed of the terminal and a speed threshold; 
 determining a sidelink resource for sidelink communication based on the resource allocation scheme; and 
 performing the sidelink communication using the sidelink resource, 
 wherein the resource allocation scheme is classified into a type 1-resource allocation scheme and a type2-resource allocation scheme, and 
 wherein a first sidelink resource determined based on the type1-resource allocation scheme is different from a second sidelink resource determined based on the type2-resource allocation scheme, and 
 wherein, when the speed of the terminal is above the speed threshold, the resource allocation scheme selected by the base station is the type1-resource allocation scheme, and when the speed of the terminal is below the speed threshold, the resource allocation scheme selected by the base station is the type2-resource allocation scheme. 
 
     
     
       6. The operation method according to  claim 5 , wherein the first message further includes position information of the terminal. 
     
     
       7. An operation method of a base station in a communication system, the operation method comprising:
 receiving, from a terminal, a first message including a speed of the terminal; 
 selecting a resource allocation scheme for sidelink communication based on a result of comparing the speed of the terminal and a speed threshold; and 
 transmitting, to the terminal, a second message including information indicating the resource allocation scheme, 
 wherein the resource allocation scheme is classified into a type 1-resource allocation scheme and a type2-resource allocation scheme, and 
 wherein a first sidelink resource determined based on the type1-resource allocation scheme is different from a second sidelink resource determined based on the type2-resource allocation scheme, and 
 wherein, when the speed of the terminal is above the speed threshold, the selected resource allocation scheme is the type1-resource allocation scheme, and when the speed of the terminal is below the speed threshold, the selected resource allocation scheme is the type2-resource allocation scheme. 
 
     
     
       8. The operation method according to  claim 7 , wherein the first message further includes position information of the terminal.